Soviet tube 6S5S (6C5C) from manufacturer Tantal (Saratov) is a general purpose triode which was designed for service as oscillator, detector or amplifier. It is direct replacement for the 6C5 (metal envelope tube – so this one has another shape), 6C5GT tube and the chinese 6C5P as well. All of the available tubes are new old stock and tested (please look at the gallery pictures). Year of production: 1955.